This report was prepared at the request of the California Research Bureau. The data are from a larger study on police crime in the United States. Police crimes are those crimes committed by sworn law enforcement officers given the general powers of arrest at the time the offense was committed and/or at the time when the officer was arrested. These crimes can occur while the officer is on- or off-duty and include offenses committed by state, county, municipal, tribal, or special law enforcement agencies. Police crimes damage the occupational integrity of police officers, the organizational legitimacy of the employing law enforcement agency, and the overall authority and legitimacy of the law enforcement community. According to Stinson’s (2009) typology of police crime, nearly all crime committed by sworn law enforcement officers is alcohol-related, drug-related, sex-related, violence-related, and/or profit-motivated. This report focuses on the sex-related police crime arrests of sworn law enforcement officers in the State of California during the years 2005-2011.